Long-Term Debt and Capital Leases (Narrative) (Details) (USD $)	Mar. 30, 2014	Dec. 29, 2013
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 750,000,000
Available borrowings capacity under letters of credit	654,100,000
Total capital leases	12,000,000	12,300,000
Capital leases, current	1,400,000	1,400,000
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit, outstanding	$ 15,600,000